Which of the following is incorrect regarding inertia force?
a) Imaginary force
b) Acts upon a rigid body
c) Brings the body to equilibrium
d) Same direction as of accelerating force
Q.2.
Inertia torque acts in the same direction as the accelerating couple?
a) True
b) False
Q.3.
If a force has a line of action at a distance h from the centre of gravity, then the value of h is given by _____
a) I. α/F
b) I. α/m.g
c) I/m.k
d) m.k/I
Q.4.
D-Alembert’s principle is used for which of the following?
a) Change static problem into a dynamic problem
b) Change dynamic problem to static problem
c) To calculate moment of inertia of rigid bodies
d) To calculate angular momentum of a system of masses
Q.5.
In the expression F – m.a =the term – m.a is called _______
a) Reversed effective force
b) Net force
c) Coriolis force
d) Resultant force
Q.6.
Why the inertia torque acts in the opposite direction to the accelerating couple?
a) Bring the body in equilibrium
b) To reduce the accelerating torque
c) Acts as a constraint torque
d) Increase the linear acceleration
Q.7.
A body remains in equilibrium if ________
a) Inertia force is applied in the same direction to the resultant force
b) Inertia force is applied in the direction opposite to the resultant force
c) Inertia force is applied in the direction Perpendicular to the resultant force
d) Inertia force is applied in the direction Parallel to the resultant force
Q.8.
Inertia force and the reversed effective force are the same.
a) True
b) False
Q.9.
In the following picture the G is the center of gravity, the quantity h is known as the “offset”. I is the moment of inertia and k is the radius of gyration. Offset’s value is given by?
a) I.α/F
b) I.α/m.g
c) I/m.k
d) m.k/I
Q.10.
Considering a four bar chain with each link having linear and angular acceleration, applying D-Alembert’s principle will never result in which of the following member?
a) 2- force member
b) 3- force member
c) 4 – force member
d) Non accelerating member
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